1. If a person does eight hours a day, a person does 300x8=2400 on average every day.

25000/2400 =10.416, so it needs 1 1 person, and the required time is 25000/3300=7.578 hours.

2. Do not consider the issue of working hours

Time spent by one person: 25,000/300 = 83.333 (hours)

From 83+ 1=84 people, it only takes less than an hour, that is, it can be completed in less than an hour.

Because constraints are more open, there will be more solutions.